* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html,body,#app {
    width: 100%;
    height: 100%;
}

.el-card {
    margin-top: 20px;
}

.el-table {
    margin-top: 20px;
    margin-bottom: 20px;
}
